What's the deal with WhatsApp?

So many people give high praise to this app as if it's the greatest thing since sliced-bread. Here's how WhatsApp is advertised on their website (www.whatsapp.com)

WhatsApp Messenger is a smartphone messaging app which allows you to exchange messages with your friends and contacts without having to pay for SMS. WhatsApp Messenger is cross platform and available for iPhone, BlackBerry, Android and Nokia (beta) and yes, those phones can all message each other! To send and receive messages, WhatsApp utilizes your existing smartphone internet data plan: 3G/EDGE (or Wi-Fi when available)

So, I don't understand what's the appeal?

1. It advertises itself as a cross-platform smartphone messaging app that utilizes your data connection so you don't have to pay for SMS. Every smartphone platform already comes built-in with such an app. It's called email.

2. Let's be honest with ourselves. WhatsApp is an instant messaging application. Every smartphone platform has apps for the main instant messaging applications already (ie, Google Talk, Windows Live Messenger, AIM, Yahoo, etc)

3. WhatsApp uses your mobile phone number as your user-ID. An instant messaging service provider has no business knowing your mobile number. So, there's actually a privacy/security concern here.

4. WhatsApp is in trial mode for Android. So it's currently free. But it costs US$1 for the iOS and this will certainly be the same for Android soon. Why pay for an app when you already have the functionality native on your device? Who would ever pay just for an instant messaging app? There's not even a desktop client!

In response to the comments:

Using your phone number is the reall clever bit. It means you can instantly see all your friends who also use it instead of having to find out their usernames. It is only an IM app but it's useful because so many people do use it across all platforms.

Like I said, using your phone number is a privacy risk. How do we, as users, know what the guys at WhatsApp are doing with all this information? They can be selling it to telemarketers for all we know.
If WhatsApp is useful only because so many people use it across all platforms, then it will never be as useful as email. Email is used by everyone and it's supported on more platforms.

Alot, if not most of the Mobile IM clients are not always on (i.e., working in the background), you need to sign in to WLM or Yahoo! Messenger. WhatsApp is always working in the background therefore you get the message exactly when it is written. Thats a huge selling feature!!

Yes, for all IM clients, the user has to sign in. Having to sign in is not a flaw. It's an option the application allows the user. You also have the option to sign out. Also, most IM clients include the option to automatically sign in. (Strange enough, you don't have the option to sign out of WhatsApp.)
With Windows Mobile or Android, once you sign in with your IM client, you just leave it in the background. As long as you don't reboot your phone, you are always signed in. I can't say the same for iOS though. So perhaps, this application is really for iOS users because they can't multitask properly?

I still fail to see how WhatsApp is better than email, which:
- is also instant.
- has no limitation on the type of attachments.
- is a native feature to every smartphone. You don't have to pay for and use a separate application.
- doesn't even require you to "add" a person. Just begin typing the recipients name and every smartphone will autocomplete the field for you if you have that person's email in your contact list. If you don't have the person's email in your contact list, just type the address.
- is not only cross-smartphone platform; it is truly cross-platform. Email can be accessed on smartphones, dumbphones, and computers.

Update
I'm getting multiple comments with various insults over this. They're not published because they're simply not constructive. The main purpose of this article is not to say that WhatsApp is terrible. I'm just trying to say WhatsApp is redundant and I find it odd that people are paying for what's essentially an application that provides you with a functionality they already have. So if anyone has an opposing view, then please, let's discuss because I would be interested to know why exactly is this app so popular.
From the comments so far, I respect the following reasons for using WhatsApp:
- Your contacts list is not populated with email addresses.
- You like the IM-style of WhatsApp but don't like to sign in to other IM apps.

Update #2
Wow. I just realized that WhatsApp on Android is free for the first year and then $1.99 per year thereafter. There's a subscription fee and there are still people who use this? It's just appalling to me that people will pay an annual fee for instant messaging.

Update #3
Lots of comments flooding in about how Whatsapp is better than email because of the IM nature of the app. Ok, I get that. Look through the comments and I've conceded that IM is better than email when it comes to chatting.
The reason I initially use email as a point of reference is because email is native to every single smartphone. There's not a single smartphone that doesn't support push email. If you have to open up your inbox to refresh it to see if you have any new emails, then you've set up your account the wrong way. So if you want to send and receive messages or files instantly, you don't need a third party app for it.
But if IM is your cup of tea, why not stick with Google Talk or Windows Live Messenger? There are numerous reputable IM cients available for free. Why support these guys over at Whatsapp?
Also, the previous argument against using other IM apps is that they drain battery. Not anymore. Both Android and iOS support push messaging background services. In fact, Whatsapp uses the same service.

Update #4
Commentors, please stop comparing Whatsapp with SMS. Whatsapp is not SMS, is not emulating SMS, and has nothing to do with SMS.
Can it replace SMS? Sure, but so can every other IM client out there. And they're free, more secure, and more fully featured.
Is a $1.00 one-time fee or a $1.99 annual-subscription a lot of money? No, not at all. But it's all relative. Consider what you're getting before paying for it. If everyone else is offering the same (and better) product without charging for it, what's the logic in paying for an inferior alternative?
It's like if your neighbor bought an ambulance and decided to announce to everyone that he's going to offer ambulatory services. He'll charge you a few bucks and bring you to the nearest hospital. Sure, it's not a lot of money. But why not just call 911?

HTC Legend Review

Worthy successor to last year's most talked about smartphone

The HTC Hero was one of the better smartphones released last year and arguably the best Android device. The HTC Legend improves upon the Hero in many ways.

Specs here.

The retail box contains the following:

• The device itself
• 2GB Class 2 microSD memory card
• USB to microUSB cable
• Wall charger (USB output to the above mentioned cable)
• Stereo handsfree set (Uses the 3.5mm audio jack, contains mic, and buttons to answer calls and control your music playback)
• Manuals, Warranty info, and other literature.

Just looking at specs, there's really not much difference. There's a 72 Mhz improvement in CPU clock speed and 96 MB improvement in RAM. The trackball has been replaced by an optical trackpad. The camera is still 5MP but is now accompanied by an LED flash.

Despite the minor hardware improvements, the Legend feels significantly faster than the Hero. No lags in animations and screen transitions. Pinch-to-zoom (in either browser or photos) feels much smoother than on the Hero.

The main difference from the Hero (and other devices available now) is the design of the Legend. It's has an aluminum unibody design. This makes the device thinner and feels very sturdy in hand. The brushed finish makes it less slippery to hold. It's compact size makes it very pocketable. The chin from the Hero is still here but it's more subtle.

Consider swapping out the 2GB microSD card for something at least 8GB. It would have been ideal if HTC had included a couple of GB of internal storage. But it's a minor issue since 8GB cards are pretty inexpensive these days.

The device does not come with screen protectors or a pouch. So you may want to invest in one or the other or both. The screen is glass so it won't scratch easily. But having a screen protector won't hurt. Plus, it'll greatly improve the resale value if you decide to sell it in a year or two.

The screen is HVGA resolution which you would think pales in comparison to WVGA devices. In reality, it doesn't. There's a difference obviously but it's not like everything is fuzzy in HVGA.

Please see my Desire review for my comments regarding the browser, keyboard, and negatives about the device. The same applies here.

(Unlike the HTC Desire, the Legend allows you to attach a lanyard.)

A couple more differences between the Legend and Desire:

• Less options available in email retrieval scheduling compared to the HTC Desire.
• You can have seperate wallpapers for the lockscreen and homescreen on the Legend while you can't on the Desire.
• The Desire supports live-wallpaper (animated) while the Legend doesn't.

Conclusion:
The Legend is perfect for someone who wants something compact and sturdy. The unibody design makes it look super sleek. It's got both style and substance. If you choose it over the HTC Desire, you're not missing out on anything other than screen size.

HTC Desire Review

Truly deserving of the name "Superphone"

The HTC Desire is the ultimate do-everything device. It has everything that can ever want from a smartphone, except a hardware qwerty keyboard. But then once you try HTC's on-screen keyboard, you'll realize you don't need physical keys. More on that later.

Check out the specs here.

The retail box contains the following:

• The device itself
• 4GB Class 2 microSD memory card
• USB to microUSB cable
• Wall charger (USB output to the above mentioned cable)
• Stereo handsfree set (Uses the 3.5mm audio jack, contains mic, and buttons to answer calls and control your music playback)
• Manuals, Warranty info, and other literature.

A couple of things to consider after getting the Desire.
You should swap out that 4GB microSD for something at least 8GB. It would have been ideal if HTC had included a couple of GB of internal storage. But it's a minor issue since 8GB cards are pretty inexpensive these days.

The device does not come with screen protectors or a pouch. So you may want to invest in one or the other or both. The screen is glass so it won't scratch easily. But having a screen protector won't hurt. Plus, it'll greatly improve the resale value if you decide to sell it in a year or two.

(Not sure if anyone finds this significant, but the Desire does not have a place for you to attach a lanyard.)

I'll start with aesthetics.

The back and the chin (Yes it has a chin but it's so subtle that you'll barely notice it) of the device is covered in a black rubbery finish. This coating is soft to the touch and has good grip, making the device feel very good in hand. The round edges, light weight, and thin form-factor means it doesn't feel bulky at all.

The screen is just excellent. Colors really pop and blacks are really black because of the AMOLED technology. Photos and videos look amazing. Many people are saying that there's a flaw in the display because some shades of gray appear in a pink tint. I can verify that this issue exists but it doesn't deserve the amount of attention it's getting. The pink tint is extremely subtle, only visible in certain rare instances, and really doesn't interfere with anything. That is, you really have to look for the pink just to barely see it.

The software of Android and HTC Sense has been covered extensively by other reviewers so I'll try not to repeat what everyone knows already.

Performance is spectacular. Screen animations are smooth. GPS locks in 10 seconds from cold start.

The browser deserves praise. It is the fastest I've used on a portable device. It probably rivals some desktops. It renders swiftly and accurately. Flash content appears in their full glory. (Personal tip: try disabling JavaScript via the browser settings. Most sites will work with it disabled. You browser will feel even faster than it already is!). You can of course use pinch-to-zoom. The text will re-flow so that you don't have to scroll horizontally. Try flick scrolling rapidly on another device and you'll notice the checkerboard pattern as the screen refreshes to display the content. This doesn't happen on the Desire.

It's been mentioned by other reviewers that HTC's on-screen keyboard is excellent. I think it's so great that it deserves mentioning again. It is indeed excellent. The portrait keyboard is fine for short phrases. But turn it sideways to switch to landscape and you'll be able to type full speed with 2 thumbs. The word recognition software works great. You don't have to be even remotely accurate and it'll be able to guess correctly. Try keeping your eyes on the keyboard as you bang away at the keys and you'll be amazed at how accurate your message turns out.

A couple of minor gripes about the device:

Can't edit Microsoft Office documents. Coming from Windows Mobile, I've gotten used to being able to view, create, and edit Office documents. Natively, you can only view Office documents with the Desire. But there are paid applications in the Android Market that will enable this functionality and it is well worth the price.

HTC Mail widget doesn't pull info from Gmail application. The Mail widget only feeds from the Mail application. So, if you want to use the Mail widget to display your Gmail account, you'll need to set up your Gmail account via IMAP4, POP3, or Exchange.

Can't select and copy text from Gmail application. Again, you'll need to use IMAP4, POP3, or Exchange. (Edit: This has since been fixed since Google started releasing updates to their Google applications through the Market)

The OS should be re-skinned to use more blacks to fully utilize the AMOLED screen. This might help with battery life which isn't very impressive. It'll last at least a day but it really depends on what widgets and applications you use and how often they are refreshed/updated.

Voice-to-text is not included. You'll need to install it separately. (Edit: Voice-to-text has since been included in the official Froyo update.)

Conclusion:
I wonder how Google feels about the HTC Desire. Google asked HTC to build the Nexus One, which they did admirably. Then HTC goes and builds their own version with better hardware and design plus their own superior software.
When I went from the HTC Touch Diamond to the Touch Pro2, the experience and performance benefits were like night and day. Now, from Touch Pro2 to the Desire, again, it's like night and day.

Is the HTC Desire the best smartphone available today? I think I can claim it to be better than the following devices:
Apple iPhone 3GS
HTC HD2
Google Nexus One
Motorola Droid/Milestone
Sony Ericsson Xperia X10

This is now the phone to beat. Look out...